scholarly journals The Concept of Development and Implementation of High-Speed Transport

2020 ◽  
Vol 18 (1) ◽  
pp. 58-72
Author(s):  
V. M. Alexeev ◽  
A. V. Vaganov ◽  
M. V. Katina

The article discusses the issues of implementation and organization of high-speed transport. The objective of the article is to consider possible options for implementing highspeed (HS) motion systems using the principle of magnetic levitation, which will ensure high speeds for delivery of goods and carrying people over long distances. To achieve this objective, it is necessary to develop an engine and technical solutions for design of HS rolling stock, make decisions on energy supply infrastructure and the HS track, address safety issues and new control systems considering the state of the infrastructure and its design elements. The article discusses several options for implementation of high-speed transport systems, differing in the power supply system, current collection and track based on the magnetic levitation approach. An original approach is proposed in implementation of magnetic levitation transport using the technology of electromagnetic guns designed to implement traction forces of a magnetic levitation vehicle. The advantage of this approach is that it opens the possibility of maneuvering for the vehicle while driving. This allows to abandon switch turnouts, now significantly limiting the use of magnetic levitation transport. A mathematical model describing interaction of an electromagnetic gun and supermagnets located on the track is considered. In constructing the model, methods of the theory of electromagnetic field and interaction of magnetic bodies were used, and when constructing a model of interaction of rolling stock with a magnetic track, methods of mathematical algebra and the Cauchy theorem were used. The article discusses various principles of organization of movement using the magnetic levitation for urban, suburban, and intercity transport.

2018 ◽  
Vol 4 (3 suppl. 1) ◽  
pp. 57-84 ◽  
Author(s):  
Yuriy A. Terentyev ◽  
Valery V. Filimonov ◽  
Georgy G. Malinetskiy ◽  
Vladimir S. Smolin ◽  
Victor V. Koledov ◽  
...  

The Russian Federation is located at the crossroads of the trade routes of the Eurasian continent, where a significant volume of the transport flow of the world’s trade is formed. The transport potential of the territory of Russia, when implemented as an Integral Transit Transport System (ITTS), is comparable to the benefits from the traditional export of hydrocarbons and other raw materials. Analyzing the efficiency of transport systems, the key is the energy approach. The concept of ITTS is considered, based on all known and being developed transport lines, including high-speed vacuum magnetic levitation transport (VMLT). The fundamental problems are discussed being on the way to achieving the maximal speed, energy efficiency and throughput of VMLT. The preliminary findings are presented obtained from experiments on the test model of the VMLT route. It is concluded that there is a need for a deeper study of the properties of magnetic and superconducting materials in extreme high fields, power and speed regimes to search for fundamentally new technical solutions for the creation of VMLT


Author(s):  
Oleksandr Krasheninin ◽  
I. V. Brunskuyy ◽  
M. M. Pupiyy

Modern rolling stock must have high reliability, as it provides high-speed movement of goods andpassengers. This applies to all its constituent parts, components and assemblies, particularly those thatprovide traffic and security are the foundation of the locomotive as a whole. Since from here it is necessaryto assess the reliability of mathematical responsible units of electric rolling stock and, in particular, currentcollectors.The stability of the current collection at railway roads depends on many factors, including thecharacteristics of the pantograph and contact network. Interaction pantograph suspension and contact is acomplex process, especially at high speeds. To ensure continuous quality current collection and Currentcontact network must have high reliability.In case of refusal trolley stops rolling stock supply electricity. This can lead to temporary, economicor material costs. To avoid this, specify resource pantograph and yohoskladovyh.


2021 ◽  
Vol 7 (3) ◽  
pp. 67-105
Author(s):  
Alexander V. Kireev ◽  
Nikolay М. Kozhemyaka ◽  
Gennady N. Kononov

Background: The development of work in the field of creating cargo maglev transport systems is associated with the development and study of the electro technical complex of the rolling stock for the operating range with long stretches in poorly developed territories. Aim: The aim of the work is to substantiate the structure and parameters of the components of the electro technical complex of the rolling stock, to study the operating modes. Methods: The main research methods are functional structural analysis and synthesis, computer modeling, computational studies, analysis of research results. Results: As a result of the research, the factors that determine the appearance of the electrotechnical complex of the rolling stock have been identified. The basic requirements for the electrical complex are formulated. The structure was developed and the parameters of the components of the electrical complex for the transport platform with magnetic levitation were determined. A high-speed flat car model 13-6990 for the transportation of containers was chosen as the closest railway analogue. A computer model of a combined traction-levitation system based on a linear reluctance inductor motor has been developed. The results of computational studies, confirming the physical feasibility of the electrical complex of the rolling stock with linear reluctance inductor motors, are presented. Conclusion: The practical significance lies in the fact that the proposed concept of constructing an electro technical complex of rolling stock provides for the creation of a maglev transport system with a low-cost infrastructure.


2021 ◽  
Vol 7 (1) ◽  
pp. 139-157
Author(s):  
Maria V. Fedorova

Background: It is proposed to use maglev transport as the basis for the development of the transport system of urban agglomerations. Its operation requires a special high-speed infrastructure, new rolling stock. The project for the construction and operation of the maglev transport line (MLT) St. Petersburg Sertolovo has an extremely long-term nature, significantly affects the development of urban high-speed transport, and therefore its implementation is possible only within the framework of strategic management of the development of urban transport systems. Aim: Commissioning of maglev transport lines in places of concentration of growing passenger traffic, which will help to reduce travel time, meet freight needs, improve the quality and increase travel safety when driving on dedicated lanes. Method: The article has developed proposals for the tariff policy on the maglev transport lines. Also, a forecast of passenger traffic on the MLT line was given, taking into account the recommended tariffs for collecting tolls, and the potential income of the project on the MLT line was determined. Results: The purpose of the introduction of this MLT line is to improve transport services and reduce the time spent on trips for the population of the city of Sertolovo by providing high-speed communications, improving the technical level of rolling stock and MLT stops, which significantly affects the comfort of passenger movement.


2021 ◽  
pp. 53-69
Author(s):  
О.М. Safronov ◽  
◽  
P.O. Khozia ◽  
Yu.Ya. Vodiannikov ◽  
V.S. Rechkalov ◽  
...  

The world trend, recently, is the creation of a high-speed cargo rolling stock for speeds with 160 km / h. In these condition, the durability of the structure of the cargo car are relevant. In the process of movement in the design of the car, voltages occur, variables in time. Under the action of alternating voltages in the design elements, the process of gradual accumulation of damage, leading to the formation of microscopic crack, and then to its development and subsequent sudden destruction - metal fatigue. One of the main properties of the wagon is the ability to withstand operational loads acting on it while maintaining this ability without destruction at all stages of the life cycle. The assessment of the bearing capacity is determined by the results of the undercarriage tests, the purpose of which is the definition and assessment of the reserve coefficient of fatigue resistance of the equivalent reduced amplitude of dy-namic stresses. As a rule, dynamic stresses are random due to the perturbing effect on the side of the rail path on the wheeled pairs, which are also random. Therefore, an important section of the study is the choice of methods for obtaining, processing and analyzing experimental data. Improving the reliability of test results is achieved by applying more advanced recording methods and processing results. To estimate the level of loading of the cargo car, methods are used based on the replacement of a real random process by some schematized process, which in terms of the accumulation of fatigue damage should be equivalent to a real process. Of the variety of schematics methods, two methods are distinguished - the method of complete cycles and the rain method, which most fully reflect the real process. The advantage of the "rain" method is the ability to process the process in real time. However, the algorithm of the "rain" method is quite complicated and does not allow processing large amounts of information. In this regard, the method of maximum discharges was proposed, which is a type of full cycles method and allows you to process an unlimited amount of information online. The schematic process is divided into classes - voltage amplitudes values. Depending on the distribution of voltage amplitudes in classes, the frequency (probability) of amplitude in the class is established. The reduced amplitude of the dynamic voltage is defined as the amount of products of the likelihood of entering each class on the average magnitude of the voltage amplitude in the class. Key words: cargo car, process, dynamic, voltage, amplitude.


2020 ◽  
Vol 6 (4) ◽  
pp. 143-160
Author(s):  
Maria V. Fedorova

Background: The analysis carried out and the forecasted development prospects of the Vsevolozhsk municipal district show the high socio-economic importance of this territory for St. Petersburg and the Leningrad region. This territory is intensively developing, new residential zones are being formed on it, enterprises are opening, new jobs are being created, and recreational zones are being organized. Active housing construction in the municipalities "City of Vsevolozhsk" and "Zanevskoye rural settlement" is accompanied by a significant increase in the population. According to the forecast, in 2041 the population of the municipal formation "City of Vsevolozhsk" will exceed 100 thousand people, of the "Zanevsky rural settlement" - 180 thousand people. The population of the municipalities of St. Petersburg included in the gravitational zone of the maglev transport line in the direction "Vsevolozhsk - St. Petersburg", in 2041 will increase by 1.4 times compared to 2015, amounting to 520 thousand people. The listed tendencies indicate that in the future the intensity of traffic flows will grow and the demand for the use of maglev passenger transport will increase. Aim: Putting into operation lines of magneto-transport vehicles in places of concentration of growing passenger flows, which will help to reduce travel time, meet freight requirements, improve the quality and increase travel safety when driving along dedicated lanes. Method: We have described the existing transport service system in Vsevolozhsk. The survey of passenger traffic on bus routes operating between Vsevolozhsk and St. Petersburg was carried out by two methods during the periods of morning and evening peaks, as well as during the inter-peak period: visual method and tabular method. The article gives a characteristic of the uneven distribution of passenger traffic at the Ladozhskaya metro station and the socio-economic characteristics of the pedestrian accessibility zone of stopping points, identifies the maximum passenger traffic and the need for rolling stock. Results: As the basis for the development of the transport system of urban agglomerations, it is proposed to use magnetolithic transport. For its operation, a special high-speed infrastructure and a new rolling stock are needed. In other words, there is a need for the development and economic evaluation of projects for the construction and operation of magnetolithic transport lines in the formation and implementation of transport strategies of modern urban agglomerations.


2019 ◽  
Vol 26 (4) ◽  
pp. 219-225
Author(s):  
Mirosław Siergiejczyk ◽  
Adam Rosiński

AbstractTransport telematics systems integrate information technology with telecommunications for their use in various transport systems. Thanks to the use of advanced technical solutions and modern telecommunications and IT systems, it is possible to implement additional innovative services. They can be used to rationalize the process of using and maintaining means of transport. Modern vehicles are equipped with telematic on-board systems. Such solutions combine various electronic devices used in the vehicle. For this purpose, bus solutions are used, thanks to which it is possible to control individual systems and devices. It is also possible to use the transmitted data to detect negative exploitation phenomena during vehicle use (e.g. glazing phenomenon, work in the upper engine rev range with too low coolant temperature, intensive work compressor of the high air pressure system being a symptom of inability of pneumatic systems). This is possible because the data being sent has a specific information resource. Thanks to this, to can be concluded about the loss of the exploitation potential of the vehicle. This approach will be used to rationalize the technical service of the vehicle fleet, with regard to profiling. Using exploitation data, received via a telematic interface from vehicles, it is possible to profile the rolling stock. It consists in distinguishing individual sets of vehicles due to certain reliability and exploitation properties. This approach allows for the specification of the rolling stock exploitation, giving the opportunity to rationalize the use and exploitation. The publication presents the author’s graph of the exploitation process taking into account the profiling of the vehicle fleet. The application of the presented approach will contribute to the improvement of the value of certain vehicle reliability and exploitation indicators.


2020 ◽  
Vol 168 ◽  
pp. 00044
Author(s):  
Volodymyr Hovorukha ◽  
Todor Zhelyazov

The paper presents the research results of the stability and loading of the two-axle mine cars and rail tracks with various design for calculation schemes construction of transport systems of underground rail haulage. The dependences of changes in loading, stability and operation safety of rolling stocks from the parameters of irregularities, curvature radii of the rail track and the movement speed of rolling stocks at various technical solutions of the transport system, have been studied. The research results of the interaction between the two-axle mine cars and rail track with the gauge of 750 mm for underground rail haulage are presented. The parameters have been determined of the rail track irregularities in the horizontal and vertical planes, which cause the highest values of vertical and horizontal loads, acting on the rail track and the two-axle rolling stock. The recommendations are proposed for improving the study of the rail vehicles and regulatory documents development for the construction and operation of the track structure. The results can be applied for the underground rail haulage when creating the new vehicles for mines.


2017 ◽  
Vol 3 (1) ◽  
pp. 47-57
Author(s):  
S A Kaznacheev ◽  
T S Zimenkova ◽  
A S Krasnov

Today, one of the most urgent tasks of modern transport systems in terms of volume growth and quality improvement, freight and passenger transportation worldwide, is to increase the speed of transportation and reduce the cost of energy resources associated with these transportations. These tasks can be solved by introducing high-speed, in particular magnetic-lev- el transport systems. In this paper, we describe and compare the variants of assemblies of magnetic poles based on the Halbach massif. The relevance of the studies carried out is confirmed by the world experience in the use of permanent magnets in the field of magneto-levitation technologies in various branches of science and technology. The purpose of the research and comparative analysis of variants of assemblies of magnetic poles based on the Halbach massif is to obtain data on the possibility of using such assembly variants in levitation systems of magnetic-leav- ing transport [7], as well as visual proof that mathematical modeling does not allow to fully describe emerging phenomena In this article, we use empirical methods of investigation. The results obtained will find their application in the design of the design, which will reduce both the mass-dimensions and the energy consumption of the levitation system. The practical significance of the studies obtained lies in the possibility of applying the principles considered practically in any magnetic-levitation transport systems. Conclusion: Based on the experimental studies, data were obtained on the levitation forces and the braking forces, which make it possible to draw conclusions about the advisability of using these assembly variants.


2021 ◽  
Vol 80 (2) ◽  
pp. 86-90
Author(s):  
V. A. Makarov

The article describes a new bench for testing the reliability of passenger car windows and doors. The bench can be used in various industries, mainly in transport engineering, as well as in the construction industry. This bench is functionally designed to test the entire product (windows or doors), as well as to determine the service life of individual mechanisms of this product. In contrast to the known analogs, the new bench for testing the reliability of windows and doors allows testing under the influence of variable aerodynamic pressure arising from the operation of windows and doors on moving objects, for example on high-speed transport. Specially developed test method is proposed on this bench, which allows simulating alternating aerodynamic effects on windows and doors that occur when a train passes tunnels or when trains in opposite directions diverge at high speeds. Thanks to this, bench tests can serve as an actual addition to the existing methods of testing windows and doors of modern high-speed rolling stock.


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